Mechanics

GMC SIERRA ENGINE PROBLEM

1999 GMC Sierra • 147,000 miles

Installed New Oil Pump and dash light say "Check Engine Oil Pressure". Then installed oil pressure sending unit and the problem continue with the light. There is a small knock in the engine and do not want to continuing starting engine. Can you help.
Avatar
RobSie99
November 1, 2012.




Most likely a bad bearing, either main or rod from bad pressure.

Have the pressure checked manually to verify.

Roy



AD